Equation

equation_solver::equation

Struct Equation 

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pub struct Equation { /* private fields */ }
Expand description

The equation Struct is used to solve an equation.

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impl Equation

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pub fn new(s: impl Into<String>) -> Result<Equation, EquationError>

Creates a new equation from a string.

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pub fn set_value(&mut self, variable: &str, value: f64) -> &mut Self

Sets the value of a variable in the equation.

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pub fn set_equation(&mut self, variable: &str, equation: Self) -> &mut Self

Sets the value of a variable to an equation. Note: The equation’s variables used in the original equation will be used, and no already set values will be overwriten.

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pub fn evaluate(&self) -> Result<f64, EquationError>

Evaluates the equation.

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pub fn list_vars(&self) -> HashSet<String>

Gives a HashSet of all variables (that are not set) in the equation.

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impl Debug for Equation

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.